"These girls had been trying to get to their car. The girl is on her phone not paying attention and this cop came out of nowhere and just leveled her. After that everyone just started yelling and she started crying."

Fifteen people were arrested, and police resorted to using pepper balls and bean bags after students refused to obey orders to disperse after the game.

In the video, the girl is walking down the street when an officer in riot gear runs from off camera and hits her into the bench.